Sertãozinho climate — normals and trends
Sertãozinho has a tropical savanna climate, averaging 22.8 °C annually with 1,266 mm of rain per year.
Climate normals · ERA5
SertãozinhoSão Paulo
- coords
- -21.14°, -47.99°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
22.8°C
Average daily high
28.5°C
Average daily low
18.0°C
Annual rainfall
1,266mm
Sunshine / day
10.1h
Mean relative humidity
70%
Average peak wind
12.5km/h
Seasonal range
5.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
119 d/yr
Rainy days (≥ 1 mm)
141 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.7 °C
Average feels-like low
18.7 °C
Average peak gust
30.0 km/h
Tropical nights (≥ 20 °C)
121 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.65 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
40.6 °C
17 October 1963
Coldest day
1.6 °C
26 June 1994
Wettest day
169 mm
3 January 1961
Windiest day
32.2 km/h
7 June 2011
Strongest gust
81.7 km/h
30 July 1989
Hottest feels-like
43.4 °C
29 October 2007
Coldest feels-like
-1.7 °C
26 June 1994
Sunniest day
13.3 h
12 December 1941
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 31.0 °C | +1.8 °C | 121 mm | -97 mm |
| Feb | 31.6 °C | +2.3 °C | 85 mm | -85 mm |
| Mar | 32.2 °C | +3.1 °C | 61 mm | -76 mm |
| Apr | 29.2 °C | +0.9 °C | 86 mm | +19 mm |
| May | 27.9 °C | +1.6 °C | 8 mm | -37 mm |
| Jun | 26.5 °C | +0.8 °C | 38 mm | +9 mm |
| Jul | 26.7 °C | +0.5 °C | 3 mm | -21 mm |
| Aug | 29.4 °C | +0.7 °C | 2 mm | -20 mm |
| Sep | 32.3 °C | +1.9 °C | 20 mm | -37 mm |
| Oct | 30.6 °C | +0.4 °C | 101 mm | -25 mm |
| Nov | 30.8 °C | +1.3 °C | 70 mm | -90 mm |
| Dec | 31.3 °C | +2.4 °C | 139 mm | -73 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Sertãozinho (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.8 °C and it receives 1,266 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is January (24.5 °C on average) and the coldest is June (19.4 °C). Rainfall peaks in January.
Sertãozinho averages 0 frost days, 119 hot days (≥ 30 °C) and 141 rainy days per year.
Sertãozinho has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.6 °C (on 17 October 1963) and the coldest 1.6 °C (on 26 June 1994).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Compare Sertãozinho with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sertãozinho
Other cities — Brazil
Frequently asked questions
What is the climate of Sertãozinho?
Sertãozinho has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.8 °C and it receives 1,266 mm of precipitation per year.
What is the hottest day ever recorded in Sertãozinho?
The hottest day measured in Sertãozinho between 1940 and 2025 was 17 October 1963, reaching 40.6 °C.
What is the coldest day in Sertãozinho?
The coldest day measured in Sertãozinho between 1940 and 2025 was 26 June 1994, at 1.6 °C.
Does it snow in Sertãozinho?
Almost never: Sertãozinho sees virtually no snow, with about 0 frost days per year.
Has the climate of Sertãozinho warmed?
Yes: Sertãozinho warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sertãozinho?
The wettest day measured in Sertãozinho between 1940 and 2025 was 3 January 1961, with 169 mm of rain in 24 hours.
What was the windiest day in Sertãozinho?
The windiest day measured in Sertãozinho between 1940 and 2025 was 7 June 2011, with winds reaching 32.2 km/h.
What is the warmest month in Sertãozinho?
The warmest month in Sertãozinho is January (24.5 °C on average); the coldest is June (19.4 °C).
How much does it rain in Sertãozinho?
Sertãozinho receives on average 1,266 mm of precipitation per year, spread over about 141 rainy days.
Is it sunny in Sertãozinho?
Sertãozinho gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Sertãozinho?
Yes: Sertãozinho has on average 121 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sertãozinho?
In Sertãozinho, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 29 October 2007, and the lowest was -1.7 °C on 26 June 1994.
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